Chemical Name: Methyl ethanoate
CAS Number: 79-20-9
Molecular Formula: C₃H₆O₂
Synonyms: Methyl acetate, Acetic acid methyl ester, MeOAc
Penampilan: Colorless liquid with a characteristic fruity odor
Flash Point: -10°C
Boiling Point: 56.9°C
Density: 0.932 g/cm³ at 20°C
Solubility: Slightly soluble in water (~25% at 20°C); miscible with most organic solvents
Product Overview
Methyl acetate is a versatile ester solvent derived from the esterification of acetic acid with methanol. It is widely utilized across various industries due to its excellent solvency properties, low toxicity, and pleasant odor. Methyl acetate is commonly used in applications requiring rapid evaporation and low residue.
Key Applications
1. Coatings and Paints
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Solvent for Nitrocellulose and Cellulose Esters: Methyl acetate is employed as a solvent in the formulation of nitrocellulose and cellulose acetate coatings, providing fast drying times and excellent film formation.
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Automotive and Industrial Coatings: Used in automotive refinishing and industrial coatings for its ability to dissolve a wide range of resins and pigments, ensuring smooth application and finish.
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Wood Finishes: Applied in wood coatings and varnishes to enhance durability and appearance.
2. Adhesives and Sealants
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Pressure-Sensitive Adhesives: Methyl acetate is utilized in the production of pressure-sensitive adhesives, offering good adhesion properties and quick setting times.
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Construction Sealants: Used in sealants for construction applications, providing flexibility and resistance to environmental factors.
3. Cleaning and Degreasing
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Electronic Component Cleaning: Methyl acetate serves as a cleaning agent for electronic components, effectively removing flux residues and other contaminants without leaving residues.
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Precision Cleaning: Employed in the cleaning of precision instruments and parts in industries such as aerospace and automotive manufacturing.
4. Chemical Synthesis
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Intermediate in Organic Synthesis: Methyl acetate is used as an intermediate in the synthesis of various chemicals, including acetic anhydride and methyl cyanoacetate.
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Production of Methyl Acetoacetate: It is involved in the production of methyl acetoacetate, a key intermediate in the synthesis of pharmaceuticals and agrochemicals.
5. Food and Flavor Industry
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Flavoring Agent: Naturally occurring in fruits like apples and grapes, methyl acetate is used as a flavoring agent in the food industry to impart fruity notes to products such as candies and beverages.
Physical and Chemical Properties
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Penampilan: Colorless liquid
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Odor: Characteristic fruity
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Density: 0.932 g/cm³ at 20°C
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Solubility: Slightly soluble in water (~25% at 20°C); miscible with most organic solvents
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Boiling Point: 56.9°C
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Flash Point: -10°C
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Vapor Pressure: 173 mmHg at 20°C
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Refractive Index: 1.361 at 20°C
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Autoignition Temperature: 474°C
Safety and Handling
Methyl acetate is a highly flammable liquid and vapor. It may cause eye irritation and central nervous system effects such as drowsiness or dizziness upon inhalation. Prolonged or repeated exposure may lead to skin dryness or cracking.
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Penyimpanan: Store in a cool, well-ventilated area away from heat sources and open flames. Keep containers tightly closed.
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Personal Protective Equipment (PPE): Use appropriate PPE, including gloves and safety goggles, when handling methyl acetate.
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Ventilation: Ensure adequate ventilation to minimize inhalation exposure.
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Spill Response: In case of a spill, evacuate the area and follow proper spill response procedures.
Packaging and Availability
Methyl acetate is available in various packaging options to meet the needs of different industries:
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Drums: Typically available in 180 kg (396 lbs) steel drums.
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IBC Totes: Available in 1,000 kg (2,204 lbs) intermediate bulk containers.
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Bulk Quantities: Available upon request for large-scale applications.
Payment terms: Various payment methods are available, including T/T IN ADVANCE, Part repayment and part credit, etc.